> ## Documentation Index > Fetch the complete documentation index at: https://docs.fizen.io/llms.txt > Use this file to discover all available pages before exploring further. # Why > Why Fizen exists — crypto was built for payments, but nobody built the payments layer in 2022. We did. # Why Bitcoin's original whitepaper was titled *"Bitcoin: A Peer-to-Peer Electronic Cash System."* Payments — fast, open, low-cost, borderless — were always the point. The technology kept improving. Ethereum brought programmable money. USDT gave the world a price-stable digital dollar. And yet, almost nobody uses crypto to buy a coffee, book a flight, or pay a supplier. **The gap is real.** * How many people actually spend crypto day-to-day? Very few. * How many businesses have real crypto payment infrastructure? Also very few. * How many USDT holders lose 2–5% every time they convert via P2P just to spend? Almost all of them. We feel two things about this gap: **sadness** that crypto hasn't lived up to its original purpose — and **optimism** because this is exactly the opportunity. Payments are still the most practical, most scalable, most impactful application of crypto. No one has truly unlocked it for the world yet. **That's where Fizen comes in.** We believe crypto should be usable — every day, everywhere, by everyone. Not just for trading. Not just for speculation. But for real life: fast, simple, low-cost payments with investment opportunities, all in one app. Spend USDT like cash — 150M+ Visa merchants worldwide.